Description: [caption id="" align="aligncenter" width="413" caption="Francisco "Chi Chi" Vitola, chief of labor force on for the Canal Zone Biological Area (CZBA), feeds a deer on Barro Colorado Island in the Panama Canal Zone, The CZBA was transferred to the Smithsonian in 1924 and in 1946 was renamed the Smithsonian Tropical Research Institute, c.1940, by Unidentified photographer,
Description: The term “personal equation” came into use in the 19th century as scientists found that observers have inherent biases: some anticipate events, and some report events after they have occurred. Recognition of the problem led to a spate of personal equation instruments: some measured biases of this sort, and some reduced the effect of personal errors. Most of these
Description: Former Senior Staff Scientist, Dr. Olga Linares, Smithsonian Tropical Research Institute, greatly expanded the understanding of Central American human evolution, and was elected to the U.S. National Academy of Sciences in 1992. #Groundbreaker
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